llfloaterfriends.cpp

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#include "llviewerprecompiledheaders.h"

#include "llfloaterfriends.h"

#include <sstream>

#include "lldir.h"

#include "llagent.h"
#include "llfloateravatarpicker.h"
#include "llviewerwindow.h"
#include "llbutton.h"
#include "llcallingcard.h"
#include "llfloateravatarinfo.h"
#include "llinventorymodel.h"
#include "llnamelistctrl.h"
#include "llnotify.h"
#include "llresmgr.h"
#include "llimview.h"
#include "llvieweruictrlfactory.h"
#include "llmenucommands.h"
#include "llviewercontrol.h"
#include "llviewermessage.h"
#include "lltimer.h"
#include "lltextbox.h"

//Maximum number of people you can select to do an operation on at once.
#define MAX_FRIEND_SELECT 20
#define RIGHTS_CHANGE_TIMEOUT 5.0

// simple class to observe the calling cards.
class LLLocalFriendsObserver : public LLFriendObserver
{
public:
        LLLocalFriendsObserver(LLPanelFriends* floater) : mFloater(floater) {}
        virtual ~LLLocalFriendsObserver() { mFloater = NULL; }
        virtual void changed(U32 mask)
        {
                mFloater->updateFriends(mask);
        }
protected:
        LLPanelFriends* mFloater;
};

LLPanelFriends::LLPanelFriends() :
        LLPanel(),
        LLEventTimer(1000000),
        mObserver(NULL),
        mMenuState(0),
        mShowMaxSelectWarning(TRUE),
        mAllowRightsChange(TRUE),
        mNumRightsChanged(0)
{
        mEventTimer.stop();
        mObserver = new LLLocalFriendsObserver(this);
        LLAvatarTracker::instance().addObserver(mObserver);
}

LLPanelFriends::~LLPanelFriends()
{
        LLAvatarTracker::instance().removeObserver(mObserver);
        delete mObserver;
}

BOOL LLPanelFriends::tick()
{
        mEventTimer.stop();
        mPeriod = 1000000;
        mAllowRightsChange = TRUE;
        updateFriends(LLFriendObserver::ADD);
        return FALSE;
}

void LLPanelFriends::updateFriends(U32 changed_mask)
{
        LLUUID selected_id;
        LLCtrlListInterface *friends_list = childGetListInterface("friend_list");
        if (!friends_list) return;
        LLCtrlScrollInterface *friends_scroll = childGetScrollInterface("friend_list");
        if (!friends_scroll) return;
        
        // We kill the selection warning, otherwise we'll spam with warning popups
        // if the maximum amount of friends are selected
        mShowMaxSelectWarning = false;

        LLDynamicArray<LLUUID> selected_friends = getSelectedIDs();
        if(changed_mask & (LLFriendObserver::ADD | LLFriendObserver::REMOVE | LLFriendObserver::ONLINE))
        {
                refreshNames();
        }
        else if(changed_mask & LLFriendObserver::POWERS)
        {
                --mNumRightsChanged;
                if(mNumRightsChanged > 0)
                {
                        mPeriod = RIGHTS_CHANGE_TIMEOUT;        
                        mEventTimer.start();
                        mEventTimer.reset();
                        mAllowRightsChange = FALSE;
                }
                else
                {
                        tick();
                }
        }
        if(selected_friends.size() > 0)
        {
                // only non-null if friends was already found. This may fail,
                // but we don't really care here, because refreshUI() will
                // clean up the interface.
                friends_list->setCurrentByID(selected_id);
                for(LLDynamicArray<LLUUID>::iterator itr = selected_friends.begin(); itr != selected_friends.end(); ++itr)
                {
                        friends_list->setSelectedByValue(*itr, true);
                }
        }

        refreshUI();
        mShowMaxSelectWarning = true;
}

// virtual
BOOL LLPanelFriends::postBuild()
{
        mFriendsList = LLUICtrlFactory::getScrollListByName(this, "friend_list");
        mFriendsList->setMaxSelectable(MAX_FRIEND_SELECT);
        mFriendsList->setMaxiumumSelectCallback(onMaximumSelect);
        mFriendsList->setCommitOnSelectionChange(TRUE);
        childSetCommitCallback("friend_list", onSelectName, this);
        childSetDoubleClickCallback("friend_list", onClickIM);

        refreshNames();

        childSetCommitCallback("online_status_cb", onClickOnlineStatus, this);
        childSetCommitCallback("map_status_cb", onClickMapStatus, this);
        childSetCommitCallback("modify_status_cb", onClickModifyStatus, this);
        childSetAction("im_btn", onClickIM, this);
        childSetAction("profile_btn", onClickProfile, this);
        childSetAction("offer_teleport_btn", onClickOfferTeleport, this);
        childSetAction("pay_btn", onClickPay, this);
        childSetAction("add_btn", onClickAddFriend, this);
        childSetAction("remove_btn", onClickRemove, this);

        setDefaultBtn("im_btn");

        updateFriends(LLFriendObserver::ADD);
        refreshUI();

        return TRUE;
}


void LLPanelFriends::addFriend(const std::string& name, const LLUUID& agent_id)
{
        LLAvatarTracker& at = LLAvatarTracker::instance();
        const LLRelationship* relationInfo = at.getBuddyInfo(agent_id);
        if(!relationInfo) return;
        BOOL online = relationInfo->isOnline();

        LLSD element;
        element["id"] = agent_id;
        element["columns"][LIST_FRIEND_NAME]["column"] = "friend_name";
        element["columns"][LIST_FRIEND_NAME]["value"] = name.c_str();
        element["columns"][LIST_FRIEND_NAME]["font"] = "SANSSERIF";
        element["columns"][LIST_FRIEND_NAME]["font-style"] = "NORMAL";  
        element["columns"][LIST_ONLINE_STATUS]["column"] = "icon_online_status";
        element["columns"][LIST_ONLINE_STATUS]["type"] = "text";
        if (online)
        {
                element["columns"][LIST_FRIEND_NAME]["font-style"] = "BOLD";    
                element["columns"][LIST_ONLINE_STATUS]["type"] = "icon";
                element["columns"][LIST_ONLINE_STATUS]["value"] = gViewerArt.getString("icon_avatar_online.tga");               
        }


        element["columns"][LIST_VISIBLE_ONLINE]["column"] = "icon_visible_online";
        element["columns"][LIST_VISIBLE_ONLINE]["type"] = "text";
        if(relationInfo->isRightGrantedTo(LLRelationship::GRANT_ONLINE_STATUS))
        {
                element["columns"][LIST_VISIBLE_ONLINE]["type"] = "icon";
                element["columns"][LIST_VISIBLE_ONLINE]["value"] = gViewerArt.getString("ff_visible_online.tga");
        }
        element["columns"][LIST_VISIBLE_MAP]["column"] = "icon_visible_map";
        element["columns"][LIST_VISIBLE_MAP]["type"] = "text";
        if(relationInfo->isRightGrantedTo(LLRelationship::GRANT_MAP_LOCATION))
        {
                element["columns"][LIST_VISIBLE_MAP]["type"] = "icon";
                element["columns"][LIST_VISIBLE_MAP]["value"] = gViewerArt.getString("ff_visible_map.tga");
        }
        element["columns"][LIST_EDIT_MINE]["column"] = "icon_edit_mine";
        element["columns"][LIST_EDIT_MINE]["type"] = "text";
        if(relationInfo->isRightGrantedTo(LLRelationship::GRANT_MODIFY_OBJECTS))
        {
                element["columns"][LIST_EDIT_MINE]["type"] = "icon";
                element["columns"][LIST_EDIT_MINE]["value"] = gViewerArt.getString("ff_edit_mine.tga");
        }
        element["columns"][LIST_EDIT_THEIRS]["column"] = "icon_edit_theirs";
        element["columns"][LIST_EDIT_THEIRS]["type"] = "text";
        if(relationInfo->isRightGrantedFrom(LLRelationship::GRANT_MODIFY_OBJECTS))
        {
                element["columns"][LIST_EDIT_THEIRS]["type"] = "icon";
                element["columns"][LIST_EDIT_THEIRS]["value"] = gViewerArt.getString("ff_edit_theirs.tga");
        }
        mFriendsList->addElement(element, ADD_BOTTOM);
}

void LLPanelFriends::refreshRightsChangeList()
{
        LLDynamicArray<LLUUID> friends = getSelectedIDs();
        S32 num_selected = friends.size();

        LLSD row;
        bool can_offer_teleport = num_selected >= 1;

        // aggregate permissions over all selected friends
        bool friends_see_online = true;
        bool friends_see_on_map = true;
        bool friends_modify_objects = true;

        // do at least some of the friends selected have these rights?
        bool some_friends_see_online = false;
        bool some_friends_see_on_map = false;
        bool some_friends_modify_objects = false;

        bool selected_friends_online = true;

        LLTextBox* processing_label = LLUICtrlFactory::getTextBoxByName(this, "process_rights_label");

        if(!mAllowRightsChange)
        {
                if(processing_label)
                {
                        processing_label->setVisible(true);
                        // ignore selection for now
                        friends.clear();
                        num_selected = 0;
                }
        }
        else
        {
                if(processing_label)
                {
                        processing_label->setVisible(false);
                }
        }

        const LLRelationship* friend_status = NULL;
        for(LLDynamicArray<LLUUID>::iterator itr = friends.begin(); itr != friends.end(); ++itr)
        {
                friend_status = LLAvatarTracker::instance().getBuddyInfo(*itr);
                if (friend_status)
                {
                        bool can_see_online = friend_status->isRightGrantedTo(LLRelationship::GRANT_ONLINE_STATUS);
                        bool can_see_on_map = friend_status->isRightGrantedTo(LLRelationship::GRANT_MAP_LOCATION);
                        bool can_modify_objects = friend_status->isRightGrantedTo(LLRelationship::GRANT_MODIFY_OBJECTS);

                        // aggregate rights of this friend into total selection
                        friends_see_online &= can_see_online;
                        friends_see_on_map &= can_see_on_map;
                        friends_modify_objects &= can_modify_objects;

                        // can at least one of your selected friends do any of these?
                        some_friends_see_online |= can_see_online;
                        some_friends_see_on_map |= can_see_on_map;
                        some_friends_modify_objects |= can_modify_objects;

                        if(!friend_status->isOnline())
                        {
                                can_offer_teleport = false;
                                selected_friends_online = false;
                        }
                }
                else // missing buddy info, don't allow any operations
                {
                        can_offer_teleport = false;

                        friends_see_online = false;
                        friends_see_on_map = false;
                        friends_modify_objects = false;

                        some_friends_see_online = false;
                        some_friends_see_on_map = false;
                        some_friends_modify_objects = false;
                }
        }
        

        // seeing a friend on the map requires seeing online status as a prerequisite
        friends_see_on_map &= friends_see_online;

        mMenuState = 0;

        // make checkboxes visible after we have finished processing rights
        childSetVisible("online_status_cb", mAllowRightsChange);
        childSetVisible("map_status_cb", mAllowRightsChange);
        childSetVisible("modify_status_cb", mAllowRightsChange);

        if (num_selected == 0)  // nothing selected
        {
                childSetEnabled("im_btn", FALSE);
                childSetEnabled("offer_teleport_btn", FALSE);

                childSetEnabled("online_status_cb", FALSE);
                childSetValue("online_status_cb", FALSE);
                childSetTentative("online_status_cb", FALSE);

                childSetEnabled("map_status_cb", FALSE);
                childSetValue("map_status_cb", FALSE);
                childSetTentative("map_status_cb", FALSE);

                childSetEnabled("modify_status_cb", FALSE);
                childSetValue("modify_status_cb", FALSE);
                childSetTentative("modify_status_cb", FALSE);
        }
        else // we have at least one friend selected...
        {
                // only allow IMs to groups when everyone in the group is online
                // to be consistent with context menus in inventory and because otherwise
                // offline friends would be silently dropped from the session
                childSetEnabled("im_btn", selected_friends_online || num_selected == 1);

                childSetEnabled("offer_teleport_btn", can_offer_teleport);

                childSetEnabled("online_status_cb", TRUE);
                childSetValue("online_status_cb", some_friends_see_online);
                childSetTentative("online_status_cb", some_friends_see_online != friends_see_online);
                if (friends_see_online)
                {
                        mMenuState |= LLRelationship::GRANT_ONLINE_STATUS;
                }

                childSetEnabled("map_status_cb", TRUE);
                childSetValue("map_status_cb", some_friends_see_on_map);
                childSetTentative("map_status_cb", some_friends_see_on_map != friends_see_on_map);
                if(friends_see_on_map) 
                {
                        mMenuState |= LLRelationship::GRANT_MAP_LOCATION;
                }

                // for now, don't allow modify rights change for multiple select
                childSetEnabled("modify_status_cb", num_selected == 1);
                childSetValue("modify_status_cb", some_friends_modify_objects);
                childSetTentative("modify_status_cb", some_friends_modify_objects != friends_modify_objects);
                if(friends_modify_objects) 
                {
                        mMenuState |= LLRelationship::GRANT_MODIFY_OBJECTS;
                }
        }
}

void LLPanelFriends::refreshNames()
{
        LLDynamicArray<LLUUID> selected_ids = getSelectedIDs(); 
        S32 pos = mFriendsList->getScrollPos(); 
        mFriendsList->operateOnAll(LLCtrlListInterface::OP_DELETE);
        
        LLCollectAllBuddies collect;
        LLAvatarTracker::instance().applyFunctor(collect);
        LLCollectAllBuddies::buddy_map_t::const_iterator it = collect.mOnline.begin();
        LLCollectAllBuddies::buddy_map_t::const_iterator end = collect.mOnline.end();
        
        for ( ; it != end; ++it)
        {
                const std::string& name = it->first;
                const LLUUID& agent_id = it->second;
                addFriend(name, agent_id);
        }
        it = collect.mOffline.begin();
        end = collect.mOffline.end();
        for ( ; it != end; ++it)
        {
                const std::string& name = it->first;
                const LLUUID& agent_id = it->second;
                addFriend(name, agent_id);
        }
        mFriendsList->selectMultiple(selected_ids);
        mFriendsList->setScrollPos(pos);
}


void LLPanelFriends::refreshUI()
{       
        BOOL single_selected = FALSE;
        BOOL multiple_selected = FALSE;
        int num_selected = mFriendsList->getAllSelected().size();
        if(num_selected > 0)
        {
                single_selected = TRUE;
                if(num_selected > 1)
                {
                        childSetText("friend_name_label", childGetText("Multiple"));
                        multiple_selected = TRUE;               
                }
                else
                {                       
                        childSetText("friend_name_label", mFriendsList->getFirstSelected()->getColumn(LIST_FRIEND_NAME)->getText() + "...");
                }
        }
        else
        {
                childSetText("friend_name_label", LLString::null);
        }


        //Options that can only be performed with one friend selected
        childSetEnabled("profile_btn", single_selected && !multiple_selected);
        childSetEnabled("pay_btn", single_selected && !multiple_selected);

        //Options that can be performed with up to MAX_FRIEND_SELECT friends selected
        //(single_selected will always be true in this situations)
        childSetEnabled("remove_btn", single_selected);
        childSetEnabled("im_btn", single_selected);
        childSetEnabled("friend_rights", single_selected);

        refreshRightsChangeList();
}

LLDynamicArray<LLUUID> LLPanelFriends::getSelectedIDs()
{
        LLUUID selected_id;
        LLDynamicArray<LLUUID> friend_ids;
        std::vector<LLScrollListItem*> selected = mFriendsList->getAllSelected();
        for(std::vector<LLScrollListItem*>::iterator itr = selected.begin(); itr != selected.end(); ++itr)
        {
                friend_ids.push_back((*itr)->getUUID());
        }
        return friend_ids;
}

// static
void LLPanelFriends::onSelectName(LLUICtrl* ctrl, void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        if(panelp)
        {
                panelp->refreshUI();
        }
}

//static
void LLPanelFriends::onMaximumSelect(void* user_data)
{
        LLString::format_map_t args;
        args["[MAX_SELECT]"] = llformat("%d", MAX_FRIEND_SELECT);
        LLNotifyBox::showXml("MaxListSelectMessage", args);
};

// static
void LLPanelFriends::onClickProfile(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        //llinfos << "LLPanelFriends::onClickProfile()" << llendl;
        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        if(ids.size() > 0)
        {
                LLUUID agent_id = ids[0];
                BOOL online;
                online = LLAvatarTracker::instance().isBuddyOnline(agent_id);
                LLFloaterAvatarInfo::showFromFriend(agent_id, online);
        }
}

// static
void LLPanelFriends::onClickIM(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        //llinfos << "LLPanelFriends::onClickIM()" << llendl;
        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        if(ids.size() > 0)
        {
                if(ids.size() == 1)
                {
                        LLUUID agent_id = ids[0];
                        const LLRelationship* info = LLAvatarTracker::instance().getBuddyInfo(agent_id);
                        char first[DB_FIRST_NAME_BUF_SIZE];     /* Flawfinder: ignore */
                        char last[DB_LAST_NAME_BUF_SIZE];       /* Flawfinder: ignore */
                        if(info && gCacheName->getName(agent_id, first, last))
                        {
                                char buffer[MAX_STRING];        /* Flawfinder: ignore */
                                snprintf(buffer, MAX_STRING, "%s %s", first, last);     /* Flawfinder: ignore */
                                gIMMgr->setFloaterOpen(TRUE);
                                gIMMgr->addSession(
                                        buffer,
                                        IM_NOTHING_SPECIAL,
                                        agent_id);
                        }               
                }
                else
                {
                        gIMMgr->setFloaterOpen(TRUE);
                        gIMMgr->addSession("Friends Conference",
                                                                IM_SESSION_CONFERENCE_START,
                                                                ids[0],
                                                                ids);
                }
                make_ui_sound("UISndStartIM");
        }
}

// static
void LLPanelFriends::requestFriendship(const LLUUID& target_id, const LLString& target_name)
{
        // HACK: folder id stored as "message"
        LLUUID calling_card_folder_id = gInventory.findCategoryUUIDForType(LLAssetType::AT_CALLINGCARD);
        std::string message = calling_card_folder_id.asString();
        send_improved_im(target_id,
                                         target_name.c_str(),
                                         message.c_str(),
                                         IM_ONLINE,
                                         IM_FRIENDSHIP_OFFERED);
}

struct LLAddFriendData
{
        LLUUID mID;
        std::string mName;
};

// static
void LLPanelFriends::callbackAddFriend(S32 option, void* data)
{
        LLAddFriendData* add = (LLAddFriendData*)data;
        if (option == 0)
        {
                requestFriendship(add->mID, add->mName);
        }
        delete add;
}

// static
void LLPanelFriends::onPickAvatar(const std::vector<std::string>& names,
                                                                        const std::vector<LLUUID>& ids,
                                                                        void* )
{
        if (names.empty()) return;
        if (ids.empty()) return;
        requestFriendshipDialog(ids[0], names[0]);
}

// static
void LLPanelFriends::requestFriendshipDialog(const LLUUID& id,
                                                                                           const std::string& name)
{
        if(id == gAgentID)
        {
                LLNotifyBox::showXml("AddSelfFriend");
                return;
        }

        LLAddFriendData* data = new LLAddFriendData();
        data->mID = id;
        data->mName = name;
        
        // TODO: accept a line of text with this dialog
        LLString::format_map_t args;
        args["[NAME]"] = name;
        gViewerWindow->alertXml("AddFriend", args, callbackAddFriend, data);
}

// static
void LLPanelFriends::onClickAddFriend(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;
        LLFloater* root_floater = gFloaterView->getParentFloater(panelp);
        LLFloaterAvatarPicker* picker = LLFloaterAvatarPicker::show(onPickAvatar, user_data, FALSE, TRUE);
        if (root_floater)
        {
                root_floater->addDependentFloater(picker);
        }
}

// static
void LLPanelFriends::onClickRemove(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        //llinfos << "LLPanelFriends::onClickRemove()" << llendl;
        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        LLStringBase<char>::format_map_t args;
        if(ids.size() > 0)
        {
                LLString msgType = "RemoveFromFriends";
                if(ids.size() == 1)
                {
                        LLUUID agent_id = ids[0];
                        char first[DB_FIRST_NAME_BUF_SIZE];             /*Flawfinder: ignore*/
                        char last[DB_LAST_NAME_BUF_SIZE];               /*Flawfinder: ignore*/
                        if(gCacheName->getName(agent_id, first, last))
                        {
                                args["[FIRST_NAME]"] = first;
                                args["[LAST_NAME]"] = last;     
                        }
                }
                else
                {
                        msgType = "RemoveMultipleFromFriends";
                }
                gViewerWindow->alertXml(msgType,
                        args,
                        &handleRemove,
                        (void*)new LLDynamicArray<LLUUID>(ids));
        }
}

// static
void LLPanelFriends::onClickOfferTeleport(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        if(ids.size() > 0)
        {       
                handle_lure(ids);
        }
}

// static
void LLPanelFriends::onClickPay(void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        if(ids.size() == 1)
        {       
                handle_pay_by_id(ids[0]);
        }
}

void LLPanelFriends::onClickOnlineStatus(LLUICtrl* ctrl, void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        bool checked = ctrl->getValue();
        panelp->updateMenuState(LLRelationship::GRANT_ONLINE_STATUS, checked);
        panelp->applyRightsToFriends(LLRelationship::GRANT_ONLINE_STATUS, checked);
}

void LLPanelFriends::onClickMapStatus(LLUICtrl* ctrl, void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;
        bool checked = ctrl->getValue();
        panelp->updateMenuState(LLRelationship::GRANT_MAP_LOCATION, checked);
        panelp->applyRightsToFriends(LLRelationship::GRANT_MAP_LOCATION, checked);
}

void LLPanelFriends::onClickModifyStatus(LLUICtrl* ctrl, void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        bool checked = ctrl->getValue();
        LLDynamicArray<LLUUID> ids = panelp->getSelectedIDs();
        LLStringBase<char>::format_map_t args;
        if(ids.size() > 0)
        {
                if(ids.size() == 1)
                {
                        LLUUID agent_id = ids[0];
                        char first[DB_FIRST_NAME_BUF_SIZE];             /*Flawfinder: ignore*/
                        char last[DB_LAST_NAME_BUF_SIZE];               /*Flawfinder: ignore*/
                        if(gCacheName->getName(agent_id, first, last))
                        {
                                args["[FIRST_NAME]"] = first;
                                args["[LAST_NAME]"] = last;     
                        }
                        if(checked) gViewerWindow->alertXml("GrantModifyRights", args, handleModifyRights, user_data);
                        else gViewerWindow->alertXml("RevokeModifyRights", args, handleModifyRights, user_data);
                }
                else return;
        }
}

void LLPanelFriends::handleModifyRights(S32 option, void* user_data)
{
        LLPanelFriends* panelp = (LLPanelFriends*)user_data;

        if(panelp)
        {
                if(!option)
                {
                        panelp->updateMenuState(LLRelationship::GRANT_MODIFY_OBJECTS, !((panelp->getMenuState() & LLRelationship::GRANT_MODIFY_OBJECTS) != 0));
                        panelp->applyRightsToFriends(LLRelationship::GRANT_MODIFY_OBJECTS, ((panelp->getMenuState() & LLRelationship::GRANT_MODIFY_OBJECTS) != 0));
                }
                panelp->refreshUI();
        }
}

void LLPanelFriends::updateMenuState(S32 flag, BOOL value)
{
        if(value) mMenuState |= flag;
        else mMenuState &= ~flag;
}

void LLPanelFriends::applyRightsToFriends(S32 flag, BOOL value)
{
        LLMessageSystem* msg = gMessageSystem;
        msg->newMessageFast(_PREHASH_GrantUserRights);
        msg->nextBlockFast(_PREHASH_AgentData);
        msg->addUUID(_PREHASH_AgentID, gAgent.getID());
        msg->addUUID(_PREHASH_SessionID, gAgent.getSessionID());

        LLDynamicArray<LLUUID> ids = getSelectedIDs();
        S32 rights;
        for(LLDynamicArray<LLUUID>::iterator itr = ids.begin(); itr != ids.end(); ++itr)
        {
                rights = LLAvatarTracker::instance().getBuddyInfo(*itr)->getRightsGrantedTo();
                if(LLAvatarTracker::instance().getBuddyInfo(*itr)->isRightGrantedTo(flag) != (bool)value)
                {
                        if(value) rights |= flag;
                        else rights &= ~flag;
                        msg->nextBlockFast(_PREHASH_Rights);
                        msg->addUUID(_PREHASH_AgentRelated, *itr);
                        msg->addS32(_PREHASH_RelatedRights, rights);
                }
        }
        mNumRightsChanged = ids.size();
        gAgent.sendReliableMessage();
}



// static
void LLPanelFriends::handleRemove(S32 option, void* user_data)
{
        LLDynamicArray<LLUUID>* ids = static_cast<LLDynamicArray<LLUUID>*>(user_data);
        for(LLDynamicArray<LLUUID>::iterator itr = ids->begin(); itr != ids->end(); ++itr)
        {
                LLUUID id = (*itr);
                const LLRelationship* ip = LLAvatarTracker::instance().getBuddyInfo(id);
                if(ip)
                {                       
                        switch(option)
                        {
                        case 0: // YES
                                if( ip->isRightGrantedTo(LLRelationship::GRANT_MODIFY_OBJECTS))
                                {
                                        LLAvatarTracker::instance().empower(id, FALSE);
                                        LLAvatarTracker::instance().notifyObservers();
                                }
                                LLAvatarTracker::instance().terminateBuddy(id);
                                LLAvatarTracker::instance().notifyObservers();
                                gInventory.addChangedMask(LLInventoryObserver::LABEL | LLInventoryObserver::CALLING_CARD, LLUUID::null);
                                gInventory.notifyObservers();
                                break;

                        case 1: // NO
                        default:
                                llinfos << "No removal performed." << llendl;
                                break;
                        }
                }
                
        }
        delete ids;
}

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